How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Phil Your Own Question
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
23932409
Type Your HVAC Question Here...
Phil is online now
A new question is answered every 9 seconds

COOLING WASN'T WORKING. LOOKED AT THERMOSTAT, IT WAS BLANK,

Customer Question

COOLING WASN'T WORKING. LOOKED AT THERMOSTAT, IT WAS BLANK, NOTHING SHOWING. TOOK IT OFF THE WALL AND LOOKED AT THE BACK. THE 3 BATTERIES WERE CHORODED LIKE I HAVE NEVER SEEN BEFORE. CLEANED THE TERMINALS OFF AND PUT NEW BATTERIES IN. ALL THE SCREEN CAME BACK UP JUST AS IT WAS WHEN SET. I WENT THROUGH ALL THE OPTIONS TO SEE IF ANYTHING WOULD TURN ON. NOTHING CAME BACK UP. EVEN THOUGH THE THERMOSTAT IS CORRECTLY RECORDING COULD IT STILL BE BAD?
Submitted: 6 months ago.
Category: HVAC
Expert:  BillyHvac replied 6 months ago.

Hello,

Can you do a small test at the thermostat for me?

Expert:  BillyHvac replied 6 months ago.

we want to take the r wire and g wire and touch together. tell me if fan starts.